Table 8: Speed test results of the proposed algorithm with image Lena using a 2.7 GHz personal computer.

Image size Encryption time Decryption time

6 4 × 6 4 0.03 s 0.03 s
1 2 8 × 1 2 8 0.04 s 0.04 s
2 5 6 × 2 5 6 0.12 s 0.12 s
5 1 2 × 5 1 2 0.66 s 0.66 s
1 0 2 4 × 1 0 2 4 5.40 s 5.40 s